科研之友
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摘要
<正> Introduction Nitrogen is one of the main elements in the nutrient solution. In general plants are able to absorp and metabolize both NO_3 and NH_4, but NO_3 should be the main nitrogen form used in the nutrient solution because high level of NH_4 will cause NH_4 toxicity, resulting in lower tiss...
- 出版日期1992
- 单位浙江省农业科学院
